TL;DR: Best Way To Set Up Stripe Radar — most cases trace to a config mismatch, a hidden assumption, or a step skipped during setup. The fix path below covers the high-percentage causes first. If you're still stuck after 10 minutes, text PJ — most issues answered in one reply. 858-461-8054.
Operator Problem Guide
Best Way To Set Up Stripe Radar
Setting up Stripe Radar correctly in 2026 means configuring it to block actual fraud without blocking legitimate customers. The biggest setup mistake: leaving Radar on default settings while also not passing customer data in your API calls. Radar needs billing address, customer email, IP address, and customer name to distinguish real customers from fraudsters — without this data, it over-blocks.
Why This Happens
Configuration gaps between tools or services
Missing integrations or manual workarounds that weren't designed to scale
Changes in vendor behavior, pricing, or API that weren't communicated clearly
What To Check First
Verify your current setup matches the vendor's latest documentation
Look for recent changes — platform updates, new team members, configuration drift
Check if the problem is consistent or intermittent (different root causes, different fixes)
When To Escalate
The problem is costing you money or customers per week
You've spent more than 2 hours on it without progress
A vendor quoted you more than $500 and you're not sure if it's necessary
Dealing with this right now?
The right Radar setup: pass all customer data fields in every PaymentIntent creation — `payment_intent.create({customer: customerId, receipt_email: email, metadata: {ip: requestIp}, payment_method_data: {billing_details: {name, email, address}}})`. Enable 3DS for orders where Radar returns elevated risk (`request_three_d_secure: "automatic"`) — this lets Radar challenge suspicious orders rather than blocking them. Only add custom Radar rules after running for 30 days with full customer data — you need real data to know where to draw the lines.
